package com.koron.util;

import java.math.BigDecimal;

/**
 * 将阿拉伯数字转大写
 * @author 甄玉晴
 *
 */
public class NumberToCN {
	 private static final char[] data = new char[] { '零', '壹', '贰', '叁', '肆', 
		      '伍', '陆', '柒', '捌', '玖' }; 
	/**
	* 汉语中数字大写
	*/
	private static final String[] CN_UPPER_NUMBER = { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖" };
	/**
	* 汉语中货币单位大写，这样的设计类似于占位符
	*/
	private static final String[] CN_UPPER_MONETRAY_UNIT = { "分", "角", "元", "拾", "佰", "仟", "万", "拾", "佰", "仟", "亿", "拾",
	"佰", "仟", "兆", "拾", "佰", "仟" };
	/**
	* 特殊字符：整
	*/
	private static final String CN_FULL = "整";
	/**
	* 特殊字符：负
	*/
	private static final String CN_NEGATIVE = "负";
	/**
	* 金额的精度，默认值为2
	*/
	private static final int MONEY_PRECISION = 2;
	/**
	* 特殊字符：零元整
	*/
	private static final String CN_ZEOR_FULL = "零元";

	/**
	* 把输入的金额转换为汉语中人民币的大写
	*
	* @param numberOfMoney
	* 输入的金额
	* @return 对应的汉语大写
	*/
	public static String number2CNMontrayUnit(BigDecimal numberOfMoney) {
	StringBuffer sb = new StringBuffer();
	// 返回-1：表示该数小于0 0：表示该数等于0 1：表示该数大于0
	int signum = numberOfMoney.signum();
	// 零元的情况
	if (signum == 0) {
	return CN_ZEOR_FULL;
	}
	// 这里会进行金额的四舍五入
	long number = numberOfMoney.movePointRight(MONEY_PRECISION).setScale(0, 4).abs().longValue();
	// 得到小数点后两位值
	long scale = number % 100;
	int numUnit = 0;
	int numIndex = 0;
	boolean getZero = false;
	// 判断最后两位数，一共有四中情况：00 = 0, 01 = 1, 10, 11
	if (!(scale > 0)) {
	numIndex = 2;
	number = number / 100;
	getZero = true;
	}
	if ((scale > 0) && (!(scale % 10 > 0))) {
	numIndex = 1;
	number = number / 10;
	getZero = true;
	}
	int zeroSize = 0;
	while (true) {
	if (number <= 0) {
	break;
	}
	// 每次获取到最后一个数
	numUnit = (int) (number % 10);
	if (numUnit > 0) {
	if ((numIndex == 9) && (zeroSize >= 3)) {
	sb.insert(0, CN_UPPER_MONETRAY_UNIT[6]);
	}
	if ((numIndex == 13) && (zeroSize >= 3)) {
	sb.insert(0, CN_UPPER_MONETRAY_UNIT[10]);
	}
	sb.insert(0, CN_UPPER_MONETRAY_UNIT[numIndex]);
	sb.insert(0, CN_UPPER_NUMBER[numUnit]);
	getZero = false;
	zeroSize = 0;
	} else {
	++zeroSize;
	//"分", "角", "元","万", "亿","兆"位不会出现零
	if (numIndex != 0 && numIndex != 1 && numIndex != 2
	&& numIndex != 6 && numIndex != 10 && numIndex != 14) {
	if (!(getZero)) {
	sb.insert(0, CN_UPPER_NUMBER[numUnit]);
	}
	}

	if (numIndex == 2) {
	if (number > 0) {
	sb.insert(0, CN_UPPER_MONETRAY_UNIT[numIndex]);
	}
	} else if (((numIndex - 2) % 4 == 0) && (number % 1000 > 0)) {
	sb.insert(0, CN_UPPER_MONETRAY_UNIT[numIndex]);
	}
	getZero = true;
	}
	// 让number每次都去掉最后一个数
	number = number / 10;
	++numIndex;
	}
	// 如果signum == -1，则说明输入的数字为负数，就在最前面追加特殊字符：负
	if (signum == -1) {
	sb.insert(0, CN_NEGATIVE);

	}// 除了0.00其他数据都要带特殊字符：整

	//sb.append(CN_FULL);
	return sb.toString();
	}
	public static StringBuffer convert(int money) { 
	    StringBuffer sbf = new StringBuffer(); 
	    while (money != 0) { 
	      int number = money % 10; 
	      sbf.insert(0, data[number]); 
	      money /= 10; 
	    }
	    while(sbf.length()<9) {
	    	sbf.insert(0, '零');
	    }
	    return sbf; 
	  } 
	public static void main(String[] args) {
		double money = 0000000001000.01;
		BigDecimal numberOfMoney = new BigDecimal(money);
		System.out.println("你输入的金额为：【" + money + "】 #--# [" + NumberToCN.number2CNMontrayUnit(numberOfMoney).toString() + "]");

	}
	}